Open English Wordnet
Nouns
(n)traffic circle, circle, rotary, roundabouta road junction at which traffic streams circularly around a central island“the accident blocked all traffic at the rotary”
(n)carousel, carrousel, merry-go-round, roundabout, whirligiga large, rotating machine with seats for children to ride on for amusement
Adjectives
(s)circuitous, roundaboutmarked by obliqueness or indirection in speech or conduct“the explanation was circuitous and puzzling”, “a roundabout paragraph”, “hear in a roundabout way that her ex-husband was marrying her best friend”
(s)devious, circuitous, roundaboutdeviating from a straight course“a scenic but devious route”, “a long and circuitous journey by train and boat”, “a roundabout route avoided rush-hour traffic”